Find the foci of the ellipse whose equation is given. +  = 1

A. foci at (- , -1) and (, -1)
B. foci at (1 + , 1) and (1 - , 1)
C. foci at (-1 + , 1) and (-1 - , 1)
D. foci at (1 + , -1) and (1 - , -1)

Answer: D

Mathematics

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